Bump cnpg version

[alaye-ms]

No description provided.

[Copilot]

Pull request overview

This PR bumps the pinned CloudNativePG (CNPG) dependency version used by the operator module and the e2e test module, and updates the e2e documentation to match the new pin.

Changes:

• Bump github.com/cloudnative-pg/cloudnative-pg from v1.28.1 → v1.28.3 in operator/src/go.mod
• Bump github.com/cloudnative-pg/cloudnative-pg from v1.28.1 → v1.28.3 in test/e2e/go.mod
• Update test/e2e/README.md CNPG pin reference to v1.28.3

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
operator/src/go.mod	Updates the operator module’s CNPG dependency pin to v1.28.3.
test/e2e/go.mod	Updates the e2e test module’s CNPG dependency pin to v1.28.3.
test/e2e/README.md	Aligns documentation with the new CNPG version pin.

[documentdb-triage-tool]

🤖 Auto-triaged by documentdb-triage-tool.

Applied: dependencies, documentation, enhancement
Project fields suggested: Component dependencies · Priority P3 · Effort L · Status Needs Review
Confidence: 0.60 (mixed)

Reasoning

component from path globs (dependencies, docs); effort from diff stats (328+328 LOC, 5 files); LLM: Routine version bump of a dependency (cnpg) with no description of breaking changes or urgency.

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